import Vue from 'vue'
import VueRouter from 'vue-router'
import Login from '../components/Login.vue'
import Home from '../components/Home.vue'
import Welcome from '../components/Welcome.vue'
import Questionnaire from '../components/Questionnaire.vue'
import Edit from '../components/Edit.vue'
import ReleaseSuccess from '../components/ReleaseSuccess.vue'
import ReleaseFail from '../components/ReleaseFail.vue'
import FillIn from '../components/FillIn.vue'
import FillInFail from '../components/FillInFail.vue'
import Statistics from '../components/Statistics.vue'
import SubmitSuccess from '../components/SubmitSuccess.vue'
import RecycleBin from '../components/RecycleBin.vue'

Vue.use(VueRouter)

const routes = [
  { path: '/', redirect: '/login' },
  { path: '/login', component: Login },
  {
    path: '/home',
    component: Home,
    redirect: '/welcome',
    children: [
      { path: '/welcome', component: Welcome },
      { path: '/questionnaire', component: Questionnaire },
      { path: '/edit', component: Edit },
      { path: '/releasesuccess', component: ReleaseSuccess },
      { path: '/releasefail', component: ReleaseFail },
      { path: '/statistics', component: Statistics },
      { path: '/recyclebin', component: RecycleBin }
    ]
  },
  { path: '/fillin', component: FillIn },
  { path: '/fillinfail', component: FillInFail },
  { path: '/submitsuccess', component: SubmitSuccess }
]

const router = new VueRouter({
  mode: 'history',
  routes: routes
})

// 挂载路由导航守卫
router.beforeEach((to, from, next) => {
  // to 将要访问的路径
  // from 代表从哪个路径跳转而来
  // next 是一个函数 ，表示放行
  // next()放行 next('/login') 强制跳转
  if (to.path === '/login' || to.path === '/fillin' || to.path === '/fillinfail' || to.path === '/submitsuccess') return next()
  // 获取token
  const tokenStr = window.sessionStorage.getItem('token')
  if (!tokenStr) return next('/login')
  return next()
})

export default router
